| 摘要 |
<p>[PROBLEMS] To provide a sharp-edge grinding wheel which has a prolonged service life and can maintain good cutting properties for a long period of time. [MEANS FOR SOLVING PROBLEMS] Abrasive grains (2) are dispersed and disposed in a metal bonding material (3) of Ni, and a Cu plating layer (4) having a thickness, which does not exceed the level of protrusion of the abrasive grains (2) from the metal bonding material, is provided on the surface of the metal bonding material (3). The Cu plating layer (4), which is soft, functions as a cushioning layer upon hitting of the abrasive grains (2) against a workpiece, and, as a result, damage to the workpiece can be reduced. Accordingly, chipping of the workpiece can be suppressed. Further, the Cu plating layer (4) has excellent abrasion resistance, and, thus, the abrasion speed of both sides on which the Cu plating layer has been provided can be reduced to prolong the service life.</p> |
